Specifications

Halogen Gas Monitor – MultiZone Remote Display
Instruction 3015-5157 40
Clearing System Faults
If the fault condition is associated with an HGM-MZ, the monitor will return to normal operation soon after the
problem is corrected. At that time the YELLOW LED will turn off and any external alarms connected to the
monitor’s alarm relays will also turn off. The HGM-RD will return to normal operation the next time it polls the
affected HGM-MZ monitor.
Once the system malfunction has been corrected it may take some time for the fault condition to clear
completely. If the fault is associated with a specific zone, the HGM-MZ must first cycle back to the affected
zone before it returns to normal operation. At that time the YELLOW LED will turn off and any external alarms
connected to the monitor’s alarm relays will also turn off. The HGM-RD will return to normal operation the
next time it polls the affected monitor.
Viewing Fault Log
A data log of the last 20 fault conditions is retained in memory. From the Fault Screen press ENTER to
display the fault log.
Fault Screen Fault Log Screen
The Fault Log screen lists potential fault conditions in the left column. It also displays a check mark (?)
indicating which problems were associated with each fault condition, as represented by the vertical cursor
bar. As you move the bar horizontally using the LEFT/RIGHT cursor keys, the date and time the fault
condition was detected is displayed in the upper right hand corner of the display window.
Anytime the fault status changes, there is an entry in the fault log, both when the fault occurs and when it is
cleared.